100mm f/2.8L macro on a 6D. It's hard not to get great results with that lens, both for portrait and macro - great colour, contrast, sharpness, and bokeh. However my most used lens is the 24-105mm f/4L, just since you can do so much with it - and I'd say it's a close second for favorite.

Hobby Shooter

Being a golfer myself it is impossible to answer which is your favourite club. I'd like to think they're all my favourites for their different purposes. But I like the shots I get with the 35L and it looks cool on my 5D3.

It's too hard to pick a favorite, normally i'd say the 85L II, but I've gotten alot of great pics with my Zeiss 50mm f/2 Makro recently. I gave up my 50L (which was my favorite for a long time) for it, no regrets.